Rotary-disk harrow.



Patented Sept. II, 1900.

R. M. SLATUN.

ROTARY DISK HARBOW.

(Application filed Sept. 21, 1899.)

2 Sheats$heet I.

(No Model.)

INVENTOH] WO6WZ 2W ATTORNEYS Q W/TNESSES I ya W/ v.4

No. 657,839. atented Sept. ll. I900. R. M. SLATUN.

ROTARY DISK HARROW.

(Application filed Sept. 21', 1899.) (No Model.) 2 Sheets-Sheet 2.

Q, a 7% v $22M,

of which are bolted two short bars 3.

tract ROBERT M. SLATON, OF MADISONVILLE, KENTUCKY.

ROTARY-DISK HARROW.

SPECIFICATION forming part of Letters Patent No. 657,839, datedSeptember 1 1, 1900.

Application filed September 21, 1899. Serial No. 731,190. (No model.)

To all whom it may concern.-

Be it known that I, RoBERrM. SLATON, a citizen of the United States,residing at Madisonville, in the county of Hopkins and State ofKentucky, have invented new and useful Improvements in RotaryDiskHarrows, of which the following is a specification.

My invention relates to rotary-disk harrows; and one object is toprovide means whereby the inner ends are connected so nearly in linewith the work as to leave no center ridge in the field, thus insuringthorough harrowing of the soil.

It is also an object to provide improved bearings for the harrow, sothat the friction will be lessened,choking prevented, and draftlightened; also, to provide improved clearers that prevent the cloggingof the disks.

The invention consists in the novel construction and combination ofparts hereinafter fully described and claimed.

In the accompanying drawings, Figure l is a perspective view of a harrowconstructed in accordance with my invention. Fig. 2 is a bottom planview of the same. Fig. 3 is a longitudinal section of one of the gangsof disks, clearly showing the bearings and their location. Fig. 4 is arear end view showing center couplings and clearers attached. Fig. 5 isa perspective view of one of the clearers detached.

In the said drawings the reference-nu meral 1 designates the tongue ofthe harrow, to which are bolted two rearwardly-extending curvedtongue-irons 2, to the rear under sides Bolted to said bars is across-bar 4, the outer ends of which pass between said curvedtongue-irons and short bars, and to the center of this crossbar the rearend of the tongue is bolted. Secured to the cross-bar 4 is an uprightplate 4:, which serves to catch in the notches of the draw-bar 16. Thelever 17 is pivoted to the draw-bar and passes up through the board 6within reach of the driver and is designed to be operated to set thegangs of disks at the desired angle to the draft-line.

The numeral 5 designates an arch having downwardly-curved ends the feetof which are bolted to curved tongue-irons 2 and short bars 3.

The numeral 6 designates a bucking-board the front end of which isbolted to the top of a knee 7, the feet of which are bolted to thetongue 1. Said bucking-board is also bolted intermediately to arch 5.

The parts thus far described constitute the main frame of my harrow.

The numeral 8 designates two channelarches, which support-the rotarydisks. Said arches are formed with legs curved downwardly, having feetat bottoms, the outer ends or feet passing between the tongue-irons 2and short bars 3, having a pivoted connection therebetween. The ends ofchannel-arches 8 have downwardly-curved legs 9 and 10, provided atbottoms with feet 11 and 12. To said feet are secured coupling-plates 13and 14. The rear end of coupling-plate 14is connected to the front endof plate 13 by a link 15. To the front end of the plate 14 a draw-bar 16is pivotally connected, said draw-bar having a series of notches formedtherein which ongage the upright plate 4.. Bearing-blocks 22 23 arebolted to the feet of the arches 8, and the rod 20 is supported in saidblocks. The concavo-convex disks 19 are each provided with a centralhole, through which the rod 20 passes, and said disks are spaced aparton said rod by the tubular sections or pipes 21. I have shown four disksin each gang, but it will be understood that any suitable number may beused.

Bolted to arches 8 are clearers that consist of an arm 26, an elbow 27,and a saddle 28, which embraces pipes 21. The object of said clearer isto prevent clogging of the disks.

In the large sizes, where three stocks may be needed, the tongue that isshown in Fig. 1 is shortened and a tongue is set off to one side, asshown in Fig. 2.

The numeral 29 designates a drivers seat secured to the bucking-board 6.

In operation the disks will harrow and pulverize the soil, and as theinner ends of the gangs are so nearly in line with each other and withthe work they will leave no center ridge. The said gangs are adjustableby means of the lever 17 and draw-bar 16, with its series of notchesthat engage with plate 4 on cross-bar 4.

Having thus fully described my invention, what I claim is 1. In arotarydisk harrow, the harrowdisks spaced apart on rods by intermediatesleeves, said disks being secured to arches pivoted at their outer endsto the frame, and their inner ends extending beyond the center or draftline of the barrow,- fiexible connections between the inner ends of thearches, and a lever attached to said flexible connections for changingthe angle of draft, substantially as described.

2. In a rotary-disk harrow, two gangs of disks mounted to revolve onseparate axles journaled at their outer ends in the harrowframe, theinner ends of said axles extending beyond each other and connected by aflexible coupling, and means for changing the draft-angle of the axlesand disks, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses.

ROBERT M. SLATON;

Witnesses:

HARDIN HIBBs, F. O. BAKER;

